[Bug 91585] [BDW] System hard lock-up on resume from suspend

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91585

--- Comment #9 from Jerome <an.inbox at free.fr> ---
The lock-up can be reproduced with both the Intel kernel 4.2 above and a Debian
4.1 (backport) while disabling DRI and hardware acceleration in the X
configuration with:

  Section "Device"
      Identifier  "Intel Graphics"
      Driver      "intel"
      Option      "NoAccel" "True"
      Option      "DRI" "False"
  EndSection

With the above 3D is using LLVMpipe and the X log properly indicate that
hardware acceleration is disabled. But the lock-up on resume still happen.
As a reminder, the lock-up happen while still in console mode, about the time
the display switch to graphic mode when all goes well.

I tried a recent Intel kernel (2015y-09m-21d-09h-47m-02s, commit
4f1d1fdaff9a6ad45b4c0399171f89b60e080070) but there are other issues that may
be different (lots of display corruptions with DRI/hw accel disabled so not
convenient to use, lock-up on suspend with hw acceleration on).

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